ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,628, issued on Jan. 20, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Microbeads and preparation method therefor" was invented by Byung Hyun Park (Daejeon, South Korea), Byoung Hyoun Kim (Daejeon, South Korea) and Su Youn Han (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Microbeads capable of controlling the pH of a sample are provided. The microbeads can control the pH of a sample to be equal, similar or close to a target pH without an automated device and the like such as an additional valve system for controlling pH, and thus could be readily applied to fields requiring pH control."
The patent was filed on Oct. 22, 2...